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Browsing Araştırma Çıktıları | TR-Dizin İndeksli Yayınlar Koleksiyonu by Publisher "Hacettepe Journal of Mathematics and Statistics"

Browsing Araştırma Çıktıları | TR-Dizin İndeksli Yayınlar Koleksiyonu by Publisher "Hacettepe Journal of Mathematics and Statistics"

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  • \sigma-regular matrices and A \sigma- core theorem for double sequences 
    Çakan, Celal; Altay, Bilal; Coşkun, Hüsamettin (Hacettepe Journal of Mathematics and Statistics, 2009)
    Abstract:The famous Knopp Core of a single sequence was extended to the P- core of a double sequence by R.F. Patterson. Recently, the MR-core and σ-core of real bounded double sequences have been introduced and ...
  • Submersion from semi-Riemannian manifolds onto lightlike manifolds 
    Şahin, Bayram; Gündüzülalp, Yılmaz (Hacettepe Journal of Mathematics and Statistics, 2010)
    Abstract:In this paper, we introduce the idea of a lightlike submersion from a semi-Riemannian manifold onto a lightlike manifold, and give some examples. Then we define O’Neill’s tensors for such ...
  • Some inequalities related to the pringsheim, statistical and σ-cores of double sequences 
    Çakan, Celal; Altay, Bilal; Çoşkun, Hüsamettin (Hacettepe Journal of Mathematics and Statistics, 2013)
    Öz: Başlık (İngilizce): Öz (İngilizce):The statistical convergence of double sequences was presented by Mursaleen-Edely and Tripathy in two ways, [10, 16]. The statistical core of double sequences was introduced by Cakan- ...
  • On soft topological categories 
    Oğuz, Gülay; Gürsoy, M. Habil; İçen, İlhan (Hacettepe Journal of Mathematics and Statistics, 2019)
    Öz:In this paper, we introduce the notion of a soft topological category as a natural consequence of the existence of topological category and soft category. Some examples of the soft topological categories are given. The ...